Driver cab of a bus



FIG. 1 is a front perspective detailed view of a driver cab of a bus inaccordance with the present design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

CLAIM The ornamental design for a driver cab of a bus, as shown anddescribed.